A company's stockholders hold their meeting at a lonely mansion. A mad doctor conducting experiments in the mansion starts to strangle them one at a time with a nylon noose. The survivors must figure out a way to stop him.

A new teenage student arrives at a prestige boarding school in Bavaria, having not only the ability to play the guitar and sing, but also to charm animals and detect ghosts. Quickly becoming part of a secretive club of five other students, he is inadvertently stranded by them at an abandoned chateau on an island in the middle of a large lake, where he encounters an enchanting young woman who wants to escape. Also filmed in a separate French language version with largely different cast, MARIANNE DE MA JEUNESSE.

Bernard Noblet is a modest bank clerk with a passion for billiards. His fiancée Juliette, a schoolteacher, dreams of one day living the high life, and his best friend Roger, a little-known inventor, is equally despairing. After careful consideration, a solution emerges: a cleverly organized hold-up will enable them to live in luxury for the rest of their lives. Bernard soon makes the acquaintance of Bettina and her mother, Madame Ralton, professionals in the "heist" business.

A disfigured killer with glazed-over white eyes is doing the dirty work so that an insurance agent-doctor can get the victims' insurance money.

The supposedly dead and buried Mabuse returns to his criminal activities, as his longtime foe Police Inspector Lohmann, a dauntless girl reporter, and an American - who may be an FBI agent, or maybe a Chicago mobster - investigate a series of gruesome murders connected to a maximum security prison and involving a minister who has written a book called "The Anatomy Of The Devil".